Gabor filters as texture discriminator

I Fogel, D Sagi - Biological cybernetics, 1989 - Springer
The present paper presents a model for texture discrimination based on Gabor functions. In
this model the Gabor power spectrum of the micropatterns corresponding to different …

Lateral interactions between spatial channels: suppression and facilitation revealed by lateral masking experiments

U Polat, D Sagi - Vision research, 1993 - Elsevier
We measured contrast detection thresholds for a foveal Gabor signal flanked by two high
contrast Gabor signals. The spatially localized target and masks enabled investigation of …

Texture interactions determine perceived contrast.

C Chubb, G Sperling… - Proceedings of the …, 1989 - National Acad Sciences
For a patch of random visual texture embedded in a surrounding background of similar
texture, we demonstrate that the perceived contrast of the texture patch depends …

The architecture of perceptual spatial interactions

U Polat, D Sagi - Vision research, 1994 - Elsevier
Lateral interactions between spatial filters were explored with a lateral masking paradigm.
Contrast sensitivity (two-alternative forced-choice) for a Gabor signal in the presence of two …

Neural dynamics of 1-D and 2-D brightness perception: A unified model of classical and recent phenomena

S Grossberg, D Todorovic - Perception & psychophysics, 1988 - Springer
Computer simulations of a neural network model of 1-D and 2-D brightness phenomena are
presented. The simulations indicate how configural image properties trigger interactions …

Response modulation by texture surround in primate area V1: correlates of “popout” under anesthesia

HC Nothdurft, JL Gallant, DC Van Essen - Visual neuroscience, 1999 - cambridge.org
We studied the effects of contextual modulation in area V1 of anesthetized macaque
monkeys. In 146 cells, responses to a single line over the center of the receptive field were …

Texture segregation and orientation gradient

MS Landy, JR Bergen - Vision research, 1991 - Elsevier
Rapid texture segregation is examined using filtered noise textures. The stimuli consist of a
foreground region of filtered noise with one dominant texture orientation against a …

Cortical dynamics of three-dimensional form, color, and brightness perception: I. Monocular theory

S Grossberg - Perception & psychophysics, 1987 - Springer
A real-time visual processing theory is developed to explain how three-dimensional form,
color, and brightness percepts are coherently synthesized. The theory describes how …

[HTML][HTML] Measurement and modeling of center-surround suppression and enhancement

J Xing, DJ Heeger - Vision research, 2001 - Elsevier
The apparent contrast of a central stimulus is affected by the presence of surrounding
stimuli. For some stimulus conditions, the apparent contrast is suppressed and for other …

[HTML][HTML] Isolating excitatory and inhibitory nonlinear spatial interactions involved in contrast detection

B Zenger, DOV Sagi - Vision research, 1996 - Elsevier
Interactions between filters tuned to different orientations and spatial locations were
investigated with a masking paradigm. Targets were masked by pairs of Gabor signals …